as i said if communication is lost no data is saved in the database - so you will not have n/a, null or anything else in the database. in fact weewx will ultimately stop running and eventually do a restart. the symptom will be shown by the time of the generated html file - which will be older than 5 minutes ago (or whatever archive period you have specified). do my test and see what happens.
On Monday, 7 October 2019 21:15:43 UTC+3, Pila wrote: > > I meant: my external program parses output. How will my program know USB > broke down? What value in my program should i test to find reset is needed? > Will N/A be saved? > > Na 7. listopada 2019. 15:26:17 CEST, Andrew Milner <andrew....@gmail.com > <javascript:>> wrote: >> >> the driver will log an error if communication with the fine offset is >> lost, and does not continue to store data in the database until >> communication is restored. >> >> >> >> >> >> On Monday, 7 October 2019 16:19:19 UTC+3, Pila wrote: >>> >>> I export InTemp to check if my USB connection to the First Offset >>> dropped dead. >>> >>> InTemp $current.inTemp.format(add_label=False) >>> InTemp $current.inTemp.raw >>> >>> What will be produced in case of null data? What do I need to test? >>> >>> In the first case, I expect N/A to mean USB connection is lost. I am >>> guessing N/A will not be in raw data. An empty field? >>> >>> So, probably the first line is a better choice for such purpose? >>> >>> -- You received this message because you are subscribed to the Google Groups "weewx-user" group. To unsubscribe from this group and stop receiving emails from it, send an email to weewx-user+unsubscr...@googlegroups.com. To view this discussion on the web visit https://groups.google.com/d/msgid/weewx-user/d568a3df-30af-4642-8337-7bbae390a8bf%40googlegroups.com.
